Extendible headphones



FIG. 1 is a perspective view of extendible headphones showing my new design, the cord is drawn broken away for indeterminate length;

FIG. 2 is a top plan view thereof, illustrated in a retracted position;

FIG. 3 is a bottom plan view of FIG. 2;

FIG. 4 is a left-side elevational view of FIG. 2;

FIG. 5 is a right-side elevational view of FIG. 2;

FIG. 6 is a rear elevational view of FIG. 2; and,

FIG. 7 is a front elevational view of FIG. 2.

Portions omitted between the break lines indicating indeterminate length form no part of the claimed design. 

CLAIM I claim the ornamental design for an extendible headphones, as shown and described. 